Setup VNC on Ubuntu Linux

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Install the following packages :

1. vnc4server – This is the vnc server application. It is run on the system which is to be viewed remotely.
2. xvnc4viewer – This is the client application. It will connect to a remote vnc system.

sudo apt-get install vnc4server xvnc4viewer

Now run vncserver from terminal

desktop:~$ vncserver :12 -geometry 1024x768

New 'enlightened-desktop:12 (enlightened)' desktop is enlightened-desktop:12

Starting applications specified in /home/enlightened/.vnc/xstartup
Log file is /home/enlightened/.vnc/enlightened-desktop:12.log

The :12 is the display number. It can be any number and will open vncserver on that number. You can have multiple vncservers running. If you are running vncserver command for the first time it will ask for a password.

Once vncserver is running , its time to run the vnc client.

desktop:~$ xvnc4viewer

VNC Viewer Free Edition 4.1.1 for X - built Apr  9 2010 18:41:55
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Server:

It is asking for the server. Enter localhost:12

desktop:~$ xvnc4viewer

VNC Viewer Free Edition 4.1.1 for X - built Apr  9 2010 18:41:55
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Server: localhost:12

Tue Nov  1 15:26:01 2011
 CConn:       connected to host localhost port 5912
 CConnection: Server supports RFB protocol version 3.8
 CConnection: Using RFB protocol version 3.8
Password:
Tue Nov  1 15:26:04 2011
 TXImage:     Using default colormap and visual, TrueColor, depth 24.
 CConn:       Using pixel format depth 6 (8bpp) rgb222
 CConn:       Using ZRLE encoding

Now a VNC window will open up with a terminal showing.

For more information :
1. https://help.ubuntu.com/community/VNC
2. https://help.ubuntu.com/community/VNC/Clients
3. https://help.ubuntu.com/community/VNC/Servers
4. https://help.ubuntu.com/community/VNC/Reverse

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